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CVE-2017-7543GHSA-HVXR-2FVV-C3WQPYSEC-2026-686

A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 7.2.0-12.1, 8.3.0-11.1, 9.3.1-2.1, 10.0.2-1.1
None on Exploit-DB, Metasploit or GitHub

Summary

A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Red Hat openstack-neutron

    openstack-neutron-10.0.2-1.1, openstack-neutron-8.3.0-11.1, openstack-neutron-9.3.1-2.1, openstack-neutron-7.2.0-12.1

  • neutronPyPI

    fixed in 7.2.0-12.1

  • neutronPyPI

    From 8.0.0 · fixed in 8.3.0-11.1

  • neutronPyPI

    From 9.0.0 · fixed in 9.3.1-2.1

  • neutronPyPI

    From 10.0.0 · fixed in 10.0.2-1.1

  • neutronPyPI

    fixed in 7.2.0-12.1; From 8.0.0 · fixed in 8.3.0-11.1; From 9.0.0 · fixed in 9.3.1-2.1; From 10.0.0 · fixed in 10.0.2-1.1

References 8

bugzilla.redhat.com

access.redhat.com

securityfocus.com